Automatic cattle feeder



FIG. 1 is a front and right side perspective view of an automatic cattle feeder showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a front elevational view thereof. 

The ornamental design for an automatic cattle feeder, as shown and described. 